American English

Definition of costume noun from the Oxford Advanced American Dictionary

     

    costume

     noun
    noun
    NAmE//ˈkɑstum//
     
     
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  1. 1[countable, uncountable] the clothes worn by people from a particular place or during a particular historical period see also national costume
  2. 2 [countable, uncountable] the clothes worn by actors in a play or movie, or worn by someone to make them look like something else The actors were still in costume and makeup. She has four costume changes during the play. He went to the party in a giant chicken costume. a costume designer
See the Oxford Advanced Learner's Dictionary entry: costume